pancoast



(No Model.) v 2 sheets-Sheet 1.

R; M.- PANGQAsm EXHAUST VBNTILATOR FR RAILWAY GARS. .Nom 7&3. A@ Patented pat. f

AN DREW BLRAHAM. PHUTOUTKQ WASHINGTON, D11

Unire @rares .their EXHU ST-VEENTI LATO R FOR RAI LWAY-CARS.

SPECIFICATION forming partof Letters Patent No. 547,356, dated October 1, 1895. Application tiled May 14,1894. Serial No. 511,155. (lilo model.)

The object of my invention is to construct a ventilator for both passenger and freight on the li'ne 2 2, Fig. l.

plan view showing the ventilator set intothe' vent1latingopening so that the outer surface railway-cars, and for vessels or other moving structures where the motion of the structure so draws them through the outside air as to render them strong exhausts of the inside atmosphere, and also for chimneys, roofs of houses, and other stationary structures where they permita free passage of air but prevent entrance of rain, cinders, (itc. This object I attain in the following manner, `.reference being had to the accompanying drawings, in which A Figure l is a perspective view with the up-` per portion-in section, illustrating my improved exhaust-ventilator. Fig. 2 isa section Fig. 8 is a sectional will be ush with-the sides of the car. Fig. 4 is a sectional view on the line 4 4, Fig. 3. Fig. 5 is a perspective view showing a modification of the method of fastening the plates shown in Fig. 3. Fig. 6 is a sectional plan view illustrating a single ventilator. Fig. 7 is a sectional view showing the ventilator applied to the clear story of the passenger-car. Fig. 8 is a view showing the ventilator applied to .the side of a freight-.car under the roof-eaves, and Fig. 9 is a side View showing the ventilator applied to askylight of a building.

the surface a" it is deliected, as indicated by the arrows in Fig. l.. The plates A are arranged at agiven distanceapart, so as to leave a space for the passage ofv air from the interior of the car, and directly back of this space are channel-shaped plates B, having flaring sides b b, so proportioned. that channels y are formed between the plates A and B for the passage of exhaust-air from the in- 5.5

terior of the car, the deflection of the outside air by the plates A creating a suction 4sufficient to cause the necessary draft.

The device shown in Fig. l consists of two outer plates and one inner plate, and at each 6o side are vertical -plates D, which preferably extend to a point in line with the inner edge of the outside plate, preventing the inrush of air through thechannel y', except when the air is coming squarely against the ventilator,

and I form on the side plate D detlectorsd, which correspond with the side b ot' the channel-plate B, so that if air should gain access to the passage y' it will be deflected across the space z and carried out through the pas- 7o sage y. I preferably form alip d on the edge of the side plate D, so as to deflect the outer 4.

air as much as possible from the passage y. By the above arrangement rain'and dirt will' be prevented from gaining access to the 75' interior of the car through the ventilator, and when the device is mounted on a car or boat the current of outside air 4will tend to create a draft sufficient to make the device a strong exhaust-ventilator. y' Y In the drawings l have shown the ventilator made in sections, the several plates A hav- `ing flanges A at their extremities and the plates B having flanges B at their extremities. -The extensions A fit over the extensions B and break joints with said extensions',

and the. screw-holes in each extension are y.

formed so that they Will be in line When the sections of the ventilator are set up, and

when the screws are inserted they properly 9oA space the deflecting-plates -A and la.

In Figs. 1 and 2 the outer plates A extend beyond the side of the car-body, whereas in the device shown in Figs. 3 and 4 the plates are flush with the side of the car. This latter arrangement is especially applicable to freightcars when the ventilator is placed in the side of the car near the roof, as shown in Fig. 8, so that the door can slide past the ventilatin gopening without interfering. ment also protects, to a certain extent, the ventilator. When the device is used inv a This arrangeroo plates are preferably inclined, as shown in Fig. 2, so as to carry oft any water that mayv gain access to the space between the plates.

In Fig. 5 I have shown the extensions of the plates A alternating with the extensions of the plates B. In this case the distance -between the plates will have to be regulated by the width of the extensions or by independent measurements, so that the exhaust-openings will be uniform.

The ventilator can be extended as desired.v

Any number of plates A and B may be used, and at each end I preferably mount the end plates D or D.

The'ventilator may extend the full length of a car, as shown in Fig. S, or may extend over one or more openings in the side of a clear story, Without departing from rnyinvention. y

While I preferably make theplates of cast metal they may Vbe made of sheet metal or other material without departing from my invention. In some instances the plates A and B may be V-shaped, as shown by dotted lines in Fig. 6; but I prefer to make them in the form of channel-plates, as much better results are obtained.

I claim as my invention- 1. The combination of the outer channel plates vA having flaring sides and having detlectin'g ribsat the junction of the sides with the body, and plates at the back forming with the outer plate exhaust channels, substantially as described.

2. The combination of the outer channel plates A and the inner channel plates B alternating with thesaid outer channel plates, extensions on each plate,`screw openings in the extensions so arranged that when the plates are adjusted in position the confining screws will pass through the extensions of both inner and outer plates, thus properly spacing the plates, substantially as described.

3. The combination in an exhaust ventilator, of theouter channel `plate or plates, the inner channel plates, with independent channeled end plates' lforming a continuation of the inner channel plates, substantially as described. I

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

RICHARD M. PANCOAST.

Witnesses:

WILLIAM A. BARR, JOSEPH H. KLEIN. 

